The item which represents a function is: B. A graph which plot the points (-5, 3), (-3, 1), (-1, -1), (1, -1), (3, 1), and (5, 3) on the x-y coordinate plane.
<h3>What is a function?</h3>
A function is a mathematical expression which is used to define and represent the relationship existing between two or more variable.
Also, it is very important to note that a function can't have the same value of x for different values of y. Thus, a graph which plot the points (-5, 3), (-3, 1), (-1, -1), (1, -1), (3, 1), and (5, 3) on the x-y coordinate plane represents a function.
Read more on function here: brainly.com/question/10439235
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